I have an older OTC Nemisys Touch. I don't have it updated to the newest programming. It had been updated by the previous owner trough the 2017 model year. So it still work's for everything I work on!!!
I would like to upgrade to a Launch. I think it can be used as a tablet as well. That way I could put HPtuners on it.
Besides my HPtuners software/laptop I also have an OTC Genisys. I "inherited" it from my days at an autobody shop (they upgraded to a Snap-on and gave me this one). I use it when I need more than just trouble codes.